The number of protons is always the same as the:

• Neutrons
• Atomic Mass
• Element
• Atomic Number

(Choose 2) Atomic mass tells the number of _____________ + _______________.

• Electrons
• Neutrons
• Nucleus
• Protons

Tags

NGSS.HS-PS1-8

This is a positively charged subatomic particles that a mass of 1 amu and is found in the nucleus of an atom

• Protons
• Nucleus
• Neutrons
• Isotope

This is a negatively charged subatomic particle that orbit the nucleus and has no mass.

• Atomic Mass
• Element
• Valence Electrons
• Electrons

These particles are found in the nucleus and have no charge (neutral).

• Electrons
• Atomic Mass
• Neutrons
• Protons

Tags

NGSS.HS-PS1-8

Atoms of the same element that have different numbers of neutrons

• Mass number
• Atomic mass unit (amu)
• Neutrons
• Isotope

Tags

NGSS.HS-PS1-8

A pure substance made of only one kind of atom

• Protons
• Element
• Mass number
• Nucleus

The unit for mass of subatomic particles

• Atomic mass unit (amu)
• Millimeters
• Kilograms (kg)
• Centimeters

Tags

NGSS.HS-PS1-7

This is found at the center of an atom and contains protons and neutrons.

• Orbitals
• Electrons
• Valence Electrons
• Nucleus

Tags

NGSS.HS-PS1-8

Electrons on the outermost energy level of an atom

• Valence Electrons
• Protons
• Electrons
• Isotope

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2